GT2/Ejectable/node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTAnimatedNode.m

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2021-08-16 00:14:59 +00:00
/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import <React/RCTAnimatedNode.h>
#import <React/RCTDefines.h>
@implementation RCTAnimatedNode
{
NSMapTable<NSNumber *, RCTAnimatedNode *> *_childNodes;
NSMapTable<NSNumber *, RCTAnimatedNode *> *_parentNodes;
}
- (instancetype)initWithTag:(NSNumber *)tag
config:(NSDictionary<NSString *, id> *)config
{
if ((self = [super init])) {
_nodeTag = tag;
_config = [config copy];
}
return self;
}
RCT_NOT_IMPLEMENTED(- (instancetype)init)
- (NSMapTable<NSNumber *, RCTAnimatedNode *> *)childNodes
{
return _childNodes;
}
- (NSMapTable<NSNumber *, RCTAnimatedNode *> *)parentNodes
{
return _parentNodes;
}
- (void)addChild:(RCTAnimatedNode *)child
{
if (!_childNodes) {
_childNodes = [NSMapTable strongToWeakObjectsMapTable];
}
if (child) {
[_childNodes setObject:child forKey:child.nodeTag];
[child onAttachedToNode:self];
}
}
- (void)removeChild:(RCTAnimatedNode *)child
{
if (!_childNodes) {
return;
}
if (child) {
[_childNodes removeObjectForKey:child.nodeTag];
[child onDetachedFromNode:self];
}
}
- (void)onAttachedToNode:(RCTAnimatedNode *)parent
{
if (!_parentNodes) {
_parentNodes = [NSMapTable strongToWeakObjectsMapTable];
}
if (parent) {
[_parentNodes setObject:parent forKey:parent.nodeTag];
}
}
- (void)onDetachedFromNode:(RCTAnimatedNode *)parent
{
if (!_parentNodes) {
return;
}
if (parent) {
[_parentNodes removeObjectForKey:parent.nodeTag];
}
}
- (void)detachNode
{
for (RCTAnimatedNode *parent in _parentNodes.objectEnumerator) {
[parent removeChild:self];
}
for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
[self removeChild:child];
}
}
- (void)setNeedsUpdate
{
_needsUpdate = YES;
for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
[child setNeedsUpdate];
}
}
- (void)updateNodeIfNecessary
{
if (_needsUpdate) {
for (RCTAnimatedNode *parent in _parentNodes.objectEnumerator) {
[parent updateNodeIfNecessary];
}
[self performUpdate];
}
}
- (void)performUpdate
{
_needsUpdate = NO;
// To be overridden by subclasses
// This method is called on a node only if it has been marked for update
// during the current update loop
}
- (BOOL)isManagedByFabric
{
for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
if ([child isManagedByFabric]) {
return YES;
}
}
return NO;
}
@end